Mold for dummy aerial bombs.



E. v. ESKESEN.l

MOLD FOB DUMMY AERIAL BOMBS.

APPLICATION rlLwAueA. 191s.

Patented Mar. 11,1919.

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E. v. ESKESEN.

MOLD FOR DUMMY AERIAL BOMBS.

APPLICATLON FILED AUG-8,19%.

Patented Mar. 11, 1919.

UNITED sTATEs PATENT ornion. c

'ECKARDT v. nsKEsEN, or NEW YORK, N. Y.Y

MOLD non DUMMY Anninl. BoMBs.

To all lwhom t may concern.'

Be it known that I, EGKARDT V. EsKE- SEN, a citizen of the UnitedStates, and a resident of New York, inthe county of New York andState ofVNew York, have invented certain new 'and useful Improvements'in Moldsfor Dummy Aerial Bombs, of which the following is a specification.

My present in vention relates generally tomolds for plastic' material,and more vparticularly' to a mold for forming dummy aerial bombs ofterra cotta, the clay for which maybe dumped in measured or weighedquantity within the mold and by means of pressure forced readily andquickly `tothe desired shape without the difficulties and' delaysincident to known apparatus for this` purpose. Y

i The primary' object of myinventionis thereforejthe provision of aquick acting effective apparatus for this purpose as well as one'whichwill be ineXp-enslve mit nature In the accompanying drawings .illustratfing my present' invention, Y

Figure 1 is a vertical longitudinal section through a mold constructedin accordance withY my invention under maximum pressure,

Fig. 2 is'a horizontal section taken longitudinally through thevmold,

Fig. 3 is a vertical longitudinal section with both of the mold partselevated,

Fig. 4 is a vertical transverse section with the parts in the positionshown in Fig. 1, and

Fig. 5 is a similar view with the shown in the position of Fig.' 3.

Fig. 6 shows `a somewhat different construction.

' Referring now to these figures, my invention proposes a mold includinga rectangular mold case 10, the'side walls 11 of which have a series ofopenings 12` opposite one another and adjacent to one end, for thereception ofpins or plungers 13. The mold case 10 also has its end walls14 provided with openings 15 for the reception-of a rod or stem 16, theopposite ends of. which project beyond the end walls 14 and one end ofwhich may have a handle 17 for convenience in the insertion of the rodor stem within, and its removal from, the mold case. j The mold itselfis in two sections, a lower section 18, and an upper section "19, eachparts of an external shape and size to slidably Specification of LettersPatent.

` intert the interior of the mold'case 10, and

site the openings 15 of the mold case end walls 14 so that the rod orstem 16 may extend axially through the mold space formed by the opposingcavities 21 of the two mold sections cut within their 'adjacent faces,land when ltogether forming a contour or outline of the article'tobemolded.

Patented Mar. 11, 1919.`

Application filed AugustlS, 1918. Serial No. 248,967. v i Y Y f Both ofthe mold sections 18 and 19Ihave vprojecting lugs 22 'therein adjacentthe smaller end ofthe mold space or cavity andV have their side edgesrecessed asat 23,. the recesses when together forming openings loppositethe openings 12 of the mold case side` walls 11 so as to permit thepinsor plungers 13 to project at their inner ends into the mold space orcavity as seen in Fig. 2.

The lower mold section 18, which is supported vupon any suitable surfaceforming the base ofthe moldcase, is elevated at the end of eachmoldngoperation by means of an elevating plunger A24 engaging itsvlowersurface at apointv substantially midway between ts ends and the uppermold'section 19 is both lowered'and raised bya'power screww25 whichengages itsupper surface Y substantiallymidway between its ends and lwhichin practice is connected to any suitable' source of powerfor'forcing the upper Y mold section downwardly 4to the requiredpressure and elevating the same after such pressure has been releasedand the clay is forced to completely'fill the mold cavity.

The pins or plungers 13 are pivotallyconnected at their outer ends at 26to intermediate points of sideV levers 27 in turn pivotally connectedatone end as at 28 to lugs 29 projecting from the sides 11 ofthe mold caseand having handles 30 at their opposite ends.

In operation, the plunger 24 is lowered to permit the lower-mold section18 tobe seated downwardly within the mold case 10 and when so seated itis obvious that the rod or stem 16 may be thrust through the end wallopenings 15 of the lower case, across the upper portion of the lowermold section 18. The levers 27 may at thesametime be moved inwardly soas to thrust the pins or plungers 13 Vinto the position shown in Fig. 2,after which the desired quantity of clay or other Vsuitable plasticmaterial is placed within the lower mold section and the upper `moldsection 19 1s lowered until the maximum pressure'is reached against thelower section. This vpressure serves to force the clay or other plasticmaterial to= completely' fill the mold space as desired, and subsequentto release of the pressureitheupper section 19 may be elevated and,after the rod or stem 16 has been withdrawn 'longitudinally through themold form and the molded form from which the rod has been withdrawn,' sothat the article may be levers 27 moved outwardly to withdraw the pinsor plungers 13, the lowerinoldsection v18 lmay be elevated by theelevating plunger 24C so as to raise the molded article to a vpointlevel with or-higher thanfthe.

walls the mold case 10. Any suitable bar or like implement may thenbeypassed through the core or axial opening of the shown vin Fig. 3 fforthereception of theV rod'16,' su`ch opening may bea fslot extending tofthe upper end of theend plate v14,

' as shown'infFig 6 of the drawing.

I claim: Y 1. ,A mold of the character described c0111- prisingsuperposed mold sections forming a saidniold sections are movablevertically,`

liaving'sideV and-end openings to register 'with' the side and endopenings of the mold -sections,-a rod for insertion longitudinallywithin the mold cavityY through Y the end openings, andvr transverseplungers shiftable in the side openings, as described. 4

2. mold .of the character described. comf i prising superposed :moldVsections forming a mo'ldacavit'y therebetween yand having'v recessedAside and end portions, vforming side and end. openings, a mold caseinwhich the sai'dfinold sections lare movable vertically,

:having side and end vopenings to register with theside and end openingsof the vmold sections, plungers in the side openings, a rod forinsertiony longitudinally within' f the mold cavity'through theendopenings, and levers pivoted at the'sides of the mold casegandto-whicli thesaid plungers are connected,.as described. i

3. A mold of the character described coing prisiiig fw.superposed moldsections formingV a mold cavity therebetween, and having recessed. end`portions forming, when vtogether, endopenings, a mold case in whichlthe said mold sections are movable ,vertii fcally, having openings inits end walls arranged to register witlitheend openings of the moldsections, v.and Ya .core ro'd Vmovable within and 'from themold cavitythrough the said endepeningsof the case and mold sections, as described.I i' V. ESKESEN.

Copies of this patent may beobtained for five'cents'each,pyfaddressing'fthe Commissioner of. Patents, Y

' *Wa'shingtom D; 50; Y

